Examine source code of Leopard Pattern Plum

{
  "name": "Leopard Pattern Plum",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "firefox.bkg.template.plum.leopard.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(74, 7, 35, 0.45)",
      "toolbar_field_text": "rgba(120, 8, 51, 1)",
      "tab_line": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5df1a3ba-4248-4e40-8910-2679070a5703}"
    }
  }
}